On Wed, Jul 10, 2013 at 3:38 PM, Vinson Lee <[email protected]> wrote: > Hi. > > Please backport upstream commit > b911a6bdeef5848c468597d040e3407e0aee04ce to 3.0 and 3.4. This patch > has already been backported to 3.2, 3.5, and 3.7. > > The upstream patch will not build with 3.4 and 3.0 because it needs > QSTR_INIT. Please use or backport similarly as commit > 150086ca6bd7493e7753f923a3f55e73701253b3 from linux-3.2.y, which was > the upstream commit backported by Ben Hutchings. > > commit b911a6bdeef5848c468597d040e3407e0aee04ce > Author: NeilBrown <[email protected]> > Date: Thu Nov 8 16:09:37 2012 -0800 > > vfs: d_obtain_alias() needs to use "/" as default name. > > NFS appears to use d_obtain_alias() to create the root dentry rather than > d_make_root. This can cause 'prepend_path()' to complain that the root > has a weird name if an NFS filesystem is lazily unmounted. e.g. if > "/mnt" is an NFS mount then > > { cd /mnt; umount -l /mnt ; ls -l /proc/self/cwd; } > > will cause a WARN message like > WARNING: at /home/git/linux/fs/dcache.c:2624 prepend_path+0x1d7/0x1e0() > ... > Root dentry has weird name <> > > to appear in kernel logs. > > So change d_obtain_alias() to use "/" rather than "" as the anonymous > name. > > Signed-off-by: NeilBrown <[email protected]> > Cc: Trond Myklebust <[email protected]> > Cc: Al Viro <[email protected]> > Cc: <[email protected]> > Signed-off-by: Andrew Morton <[email protected]> > Signed-off-by: Al Viro <[email protected]> > > Cheers, > Vinson
Hi. Please consider upstream commit b911a6bdeef5848c468597d040e3407e0aee04ce for the next 3.0 and 3.4 releases. Cheers, Vinson -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
